Question about 2003 Audi A6

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Oil questions for 2003 Audi A6 Quattro

2003 Audi A6 6 cyl All Wheel Drive Automatic 59,000 miles

Hi, I am thinking about buying a 2003 Audi A6 Quattro with 59,000 miles and i have never owned this type of car before. I am currently test-driving it and it appears that it hasn't been serviced in a while. So, my concern was what if it hasn't been serviced on a regular basis. Could there be something wrong with the car, that I can't tell? Also, when changing the oil what type of oil do these cars usually use and where is the best type of places to get an Audi serviced? Any help is greatly appreciated.

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  • chelly_2006 Oct 13, 2008

    Ok thanks... do you think if previous owners didn't keep the oil
    changed in it there could be damage? Just curious b/c the car lot told
    us to drive it home so we could see how we liked it and we were
    checking it out and there wasn't enough oil in it to touch the dip
    stick..but there are also no warning lights on or anything either... so
    the salesman called and told us to add a little bit of oil to last
    until they could get it serviced for me.. could this pose a problem?

  • yadayada
    yadayada Oct 02, 2012

    Cars do use oil, but if you think it hasn't been changed or the wrong type of oil used stay away from this car.

  • Anonymous Oct 02, 2012

    I will add to what Dennis said. No preventative maintenance apparently & just oil changes I would avoid buying it Also Euro cars will kill you in parts & your going to be at a dealer more than a repair shop when you need something done because of the scan tools needed & a lot of north american shop won't invest or get involved I wouldn't.

  • Anonymous Mar 27, 2014

    Is this a diagnostic, if so, how can I reset fault.?

  • Anonymous Mar 27, 2014

    Is this a diagnostic fault, if so,how do I reset fault?

  • Anonymous Mar 29, 2014

    radio lights up but no sound

  • Anonymous Mar 29, 2014

    I can't find where the alarm module is on the car to replace it. Car will turn itself off while driving thinking its been stolen. Car horn alarm will go off by itself. Forum suggested alarm module was the problem, said the module was in the trunk (boot). I can't find it and appreciate your telling me where it is as all I basically have to do is plug it in when I find it.


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Oil type is either 5W-30W or 10W-30W depending how cold your climate is, as far as having the car properly taken care of, the Audi dealer is the best option, they have all the proper tools and service info needed to keep the car in top running condition.

Posted on Oct 13, 2008

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  • yadayada
    yadayada Oct 13, 2008

    You need to start the engine cold, like overnight cold, have the hood open and listen for any abnormal noises like a knock of any kind, a little ticking would be nothing to worry about as long as it goes away in a few seconds, if there is not a record of regular oil changes I would be concerned, also make sure the coolant in the radiator is not rusted or otherwise discolored, cooling systems are very expensive to repair on newer cars, ask if it was flushed if the car has over 60,000 miles on it. Other items to check the trans fluid if it is an automatic, is it burnt? check for oil leaks from the engine and trans and cooling system, have the brake wear noted, if the pads are less than 25% ask to replace them.

    If this info is useful please rate my suggestions, thanks.

  • Mario Oct 02, 2012

    For 2003 Audi A6 Quattro the only oil that should be used is European spec. Castrol or Mobil1 0-40 which clearly states in the manual.10w30 should not be used and, of course I am talking synthetic only!!

  • yadayada
    yadayada Oct 02, 2012

    You are right, the manual states Castrol 5W40 synthetic.


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So what is the oil capacity of this 03 4.2l a6 quattro?

Posted on Mar 30, 2011

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Comment about "emmisionwiz" NO, it is not true that dealer is best option in any case..many shops specialized for
European cars have tools and knowledge, and they are getting parts..guess from where? Dealers, for 30-35% cheaper, or aftermarket sources. Expert? Maybe you are and you are working for a dealer!!

Posted on Jun 14, 2010

  • Mario Oct 02, 2012

    6.6 quarts


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About the 4.2. I own one. The capacity says 8 quarts but when you change it it really takes about 8.3 to bring it to the full line when the oil is warm

Posted on Sep 24, 2012

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